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Preparation method of manganese-loaded waste mushroom dreg biomass active carbon for efficiently removing aniline in water body

A technology for waste bacterial residue and biomass, which is applied in water pollutants, chemical instruments and methods, and alkali metal compounds, etc., can solve the problems of complex process, secondary pollution, and high treatment costs, achieve good selective adsorption, and improve removal. efficiency, reducing production costs

Inactive Publication Date: 2019-06-07
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly aims at technical problems such as relatively high treatment cost, complicated process and secondary pollution existing in the treatment technology of aniline-containing water or waste water in the prior art, and provides a water removal method prepared by using waste fungus slag as raw material. The method of manganese-loaded waste bacteria residue biomass activated carbon in aniline

Method used

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  • Preparation method of manganese-loaded waste mushroom dreg biomass active carbon for efficiently removing aniline in water body
  • Preparation method of manganese-loaded waste mushroom dreg biomass active carbon for efficiently removing aniline in water body

Examples

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Effect test

Embodiment 1

[0021] Peel, crush, wash, dry, and pass through a 10-mesh sieve to obtain the preparatory material for waste fungal residue; take 10g of the preparatory material for waste fungal residue and mix it with zinc chloride solution in a mass ratio of 1:1 , impregnated for 12 hours, carbonized at 300°C for 1 hour, activated at 600°C for 2.5 hours, rinsed with HCl solution with a volume ratio of 3%, dried at 50°C for 12 hours, crushed, and passed through a 80-mesh sieve to make waste bacteria residue Biomass activated carbon. Then, according to the added amount of 12.5mL 高锰酸钾溶液 / g 废菌渣生物质活性炭料 , add the activated carbon of waste bacteria residue biomass into the potassium permanganate solution with a concentration of 0.03mol / L, stir for 24 hours at a speed of 100r / min, carry out manganese doping modification, filter, and bake at a temperature of 350°C The solid product was calcined for 3 hours, and then ground to obtain manganese-loaded waste bacterial residue biomass activated carbon...

Embodiment 2

[0024] Peel, crush, wash, dry, and pass through a 15-mesh sieve to obtain the preparation material of waste fungus residue; take 10g of the preparation material of waste fungus residue and zinc chloride solution in a mass ratio of 1:3 and mix evenly , impregnated for 8 hours, carbonized at 200°C for 3 hours, activated at 500°C for 3 hours, rinsed with 4% HCl solution by volume, dried at 80°C for 8 hours, crushed, and passed through a 120-mesh sieve to make waste bacterial residue Substance activated carbon. Then, according to the added amount of 12.5mL 高锰酸钾溶液 / g 废菌渣生物质活性炭料 , add the activated carbon of waste slag biomass to the potassium permanganate solution with a concentration of 0.04mol / L, stir for 20h at a speed of 200r / min, carry out manganese doping modification, filter, and bake at a temperature of 450°C The solid product was calcined for 1 h, and then ground to obtain manganese-loaded waste bacterial residue biomass activated carbon for the adsorption of aniline.

...

Embodiment 3

[0027] Peel, grind, clean, dry, and pass through a 20-mesh sieve to obtain the preparation material of waste fungus residue; take 10g of the preparation material of waste fungus residue and zinc chloride solution in a mass ratio of 1:1 and mix evenly , impregnated for 12 hours, carbonized at 300°C for 1 hour, activated at 700°C for 0.5 hours, rinsed with HCl solution with a volume ratio of 5%, dried at 50°C for 12 hours, crushed, and passed through a 100-mesh sieve to make waste bacteria residue Biomass activated carbon. Then, according to the added amount of 12.5mL 高锰酸钾溶液 / g 废菌渣生物质活性炭料 , add the activated carbon of waste slag biomass to the potassium permanganate solution with a concentration of 0.04mol / L, stir for 28 hours at a speed of 150r / min, carry out manganese doping modification, filter, and roast at a temperature of 450°C The solid product was calcined for 0.5 h, and then ground to obtain manganese-loaded waste bacterial residue biomass activated carbon for the ads...

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Abstract

The invention discloses a preparation method of manganese-loaded waste mushroom dreg biomass activated carbon for efficiently removing aniline in a water body, and belongs to the technical field of environmental protection and water treatment. In particular, zinc chloride is used for activating the waste mushroom dregs and then roasting the waste mushroom dregs to prepare waste mushroom dreg biomass activated carbon, potassium permanganate is used for modifying the waste mushroom dreg biomass activated carbon on the basis, and the doped and modified waste mushroom dreg biomass activated carbonis used for adsorbing and removing aniline in a water body. When the material is used for treating aniline-containing water, compared with the adsorption effect of traditional activated carbon on aniline, the adsorption effect of the activated carbon on aniline is obviously enhanced. After the treatment, aniline concentration satisfies the "Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant" (GB18918-2002). According to the invention, the problem of serious water resource pollution caused by discharge of wastewater containing aniline and derivatives thereof is solved, and the water quality safety and virtuous cycle of surface water and underground water are ensured.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and water treatment, and in particular relates to a method for preparing manganese-loaded waste fungus residue biomass activated carbon for efficiently removing aniline in water. Background technique [0002] Aniline is the most representative substance of aromatic amines, widely used in national defense, chemical industry, pesticide and pharmaceutical industries. However, with the rapid development of national defense, chemical and pharmaceutical industries, the toxic substances of aniline entering natural water bodies from waste water, waste gas and other links continue to increase. Aniline waste water has a wide range of sources, and its toxicity not only endangers agricultural production, ecological environment and animal and plant growth reproduction, but also a threat to human health. In daily life, aniline can invade the human body and combine with hemoglobin through chann...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28B01J20/28C02F101/38
Inventor 李红艳李尚明程济慈田晋梅张峰王芳
Owner TAIYUAN UNIV OF TECH
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